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<a href="_h_f_functions_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* Functions and convenience methods for working with HFTypes */</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor">#import &lt;HexFiend/HFTypes.h&gt;</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#import &lt;libkern/OSAtomic.h&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno"><a class="line" href="_h_f_functions_8h.html#ab08435c6a01cfe5cd77158388f22167f">    6</a></span>&#160;<span class="preprocessor">#define HFDEFAULT_FONT (@&quot;Monaco&quot;)</span></div><div class="line"><a name="l00007"></a><span class="lineno"><a class="line" href="_h_f_functions_8h.html#afe1c300d17bd4eee18b785b5a57296ac">    7</a></span>&#160;<span class="preprocessor">#define HFDEFAULT_FONTSIZE ((CGFloat)10.)</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno"><a class="line" href="_h_f_functions_8h.html#aae371535050d473bf449536855db6af4">    9</a></span>&#160;<span class="preprocessor">#define HFZeroRange (HFRange){0, 0}</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="struct_h_f_range.html">HFRange</a> HFRangeMake(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> loc, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> len) {</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;    <span class="keywordflow">return</span> (<a class="code" href="struct_h_f_range.html">HFRange</a>){loc, len};</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;}</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFLocationInRange(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> location, <a class="code" href="struct_h_f_range.html">HFRange</a> range) {</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;    <span class="keywordflow">return</span> location &gt;= range.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &amp;&amp; location - range.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &lt; range.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;}</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSString* HFRangeToString(<a class="code" href="struct_h_f_range.html">HFRange</a> range) {</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    <span class="keywordflow">return</span> [NSString stringWithFormat:@&quot;{%llu, %llu}&quot;, range.location, range.length];</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;}</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSString* HFFPRangeToString(<a class="code" href="struct_h_f_f_p_range.html">HFFPRange</a> range) {</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;    <span class="keywordflow">return</span> [NSString stringWithFormat:@&quot;{%Lf, %Lf}&quot;, range.location, range.length];</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;}</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFRangeEqualsRange(<a class="code" href="struct_h_f_range.html">HFRange</a> a, <a class="code" href="struct_h_f_range.html">HFRange</a> b) {</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="keywordflow">return</span> a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> == b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &amp;&amp; a.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> == b.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;}</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFSumDoesNotOverflow(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <span class="keywordflow">return</span> a + b &gt;= a;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;}</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFProductDoesNotOverflow(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <span class="keywordflow">if</span> (b == 0) <span class="keywordflow">return</span> YES;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> result = a * b;</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <span class="keywordflow">return</span> result / b == a;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;}</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFProductInt(NSUInteger a, NSUInteger b) {</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    NSUInteger result = a * b;</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    assert(a == 0 || result / a == b); <span class="comment">//detect overflow</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;}</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFSumInt(NSUInteger a, NSUInteger b) {</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;        assert(a + b &gt;= a);</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        <span class="keywordflow">return</span> a + b;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;}</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFSumIntSaturate(NSUInteger a, NSUInteger b) {</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    NSUInteger result = a + b;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="keywordflow">return</span> (result &lt; a) ? NSUIntegerMax : result;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;}</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFSumULLSaturate(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> result = a + b;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keywordflow">return</span> (result &lt; a) ? ULLONG_MAX : result;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;}</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFProductULL(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> result = a * b;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    assert(HFProductDoesNotOverflow(a, b)); <span class="comment">//detect overflow</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;}</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFSum(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    assert(HFSumDoesNotOverflow(a, b));</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keywordflow">return</span> a + b;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;}</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFMaxULL(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <span class="keywordflow">return</span> a &lt; b ? b : a;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;}</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFSubtract(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    assert(a &gt;= b);</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="keywordflow">return</span> a - b;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;}</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFRoundUpToMultiple(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="comment">// The usual approach of ((a + (b - 1)) / b) * b doesn&#39;t handle overflow correctly</span></div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> remainder = a % b;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <span class="keywordflow">if</span> (remainder == 0) <span class="keywordflow">return</span> a;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> HFSum(a, b - remainder);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;}</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFRoundUpToMultipleInt(NSUInteger a, NSUInteger b) {</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="comment">// The usual approach of ((a + (b - 1)) / b) * b doesn&#39;t handle overflow correctly</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    NSUInteger remainder = a % b;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    <span class="keywordflow">if</span> (remainder == 0) <span class="keywordflow">return</span> a;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (NSUInteger)HFSum(a, b - remainder);</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;}</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFLeastCommonMultiple(NSUInteger a, NSUInteger b) {</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    assert(a &gt; 0);</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    assert(b &gt; 0);</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    </div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;    <span class="comment">/* Compute GCD.  It ends up in U. */</span></div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    NSUInteger t, u = a, v = b;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    <span class="keywordflow">while</span> (v &gt; 0) {</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;        t = v;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;        v = u % v;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;        u = t;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    }</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    </div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <span class="comment">/* Return the product divided by the GCD, in an overflow safe manner */</span></div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    <span class="keywordflow">return</span> HFProductInt(a/u, b);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;}</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFRoundUpToNextMultipleSaturate(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    assert(b &gt; 0);</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> result = a + (b - a % b);</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    <span class="keywordflow">if</span> (result &lt; a) result = ULLONG_MAX; <span class="comment">//the saturation...on overflow go to the max</span></div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;}</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFMaxRange(<a class="code" href="struct_h_f_range.html">HFRange</a> a) {</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160; 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We know that these expressions cannot overflow because of the above checks.</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <span class="keywordflow">return</span> haystack.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> - needle.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> &gt;= needle.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> - haystack.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>;</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;}</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> HFRangeSplitAboutSubrange(<a class="code" href="struct_h_f_range.html">HFRange</a> range, <a class="code" href="struct_h_f_range.html">HFRange</a> subrange, <a class="code" href="struct_h_f_range.html">HFRange</a> *outPrefix, <a class="code" href="struct_h_f_range.html">HFRange</a> *outSuffix) {</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    <span class="comment">// Requires it to be a subrange</span></div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    assert(HFRangeIsSubrangeOfRange(subrange, range));</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    outPrefix-&gt;<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> = range.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    outPrefix-&gt;<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> = HFSubtract(subrange.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, range.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>);</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    outSuffix-&gt;<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> = HFMaxRange(subrange);</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    outSuffix-&gt;<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> = HFMaxRange(range) - outSuffix-&gt;<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;}</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFIntersectsRange(<a class="code" href="struct_h_f_range.html">HFRange</a> a, <a class="code" href="struct_h_f_range.html">HFRange</a> b) {</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;    <span class="comment">// Ranges are said to intersect if they share at least one value.  Therefore, zero length ranges never intersect anything.</span></div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    <span class="keywordflow">if</span> (a.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> == 0 || b.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> == 0) <span class="keywordflow">return</span> NO;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    </div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    <span class="comment">// rearrange (a.location &lt; b.location + b.length &amp;&amp; b.location &lt; a.location + a.length) to not overflow</span></div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    <span class="comment">// = ! 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(clause1 || clause2);</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;}</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFFPIntersectsRange(<a class="code" href="struct_h_f_f_p_range.html">HFFPRange</a> a, <a class="code" href="struct_h_f_f_p_range.html">HFFPRange</a> b) {</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    <span class="comment">// Ranges are said to intersect if they share at least one value.  Therefore, zero length ranges never intersect anything.</span></div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <span class="keywordflow">if</span> (a.<a class="code" href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">length</a> == 0 || b.<a class="code" href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">length</a> == 0) <span class="keywordflow">return</span> NO;</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;    </div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;    <span class="keywordflow">if</span> (a.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a> &lt;= b.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a> &amp;&amp; a.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a> + a.<a class="code" href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">length</a> &gt;= b.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a>) <span class="keywordflow">return</span> YES;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160; 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   assert(HFIntersectsRange(a, b) || HFMaxRange(a) == b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> || HFMaxRange(b) == a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>);</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    <a class="code" href="struct_h_f_range.html">HFRange</a> result;</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    result.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> = MIN(a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>);</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;    assert(HFSumDoesNotOverflow(a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, a.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>));</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;    assert(HFSumDoesNotOverflow(b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, b.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>));</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;    result.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> = MAX(a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> + a.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>, b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> + b.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>) - result.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;    <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;}</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFSumIsLargerThanSum(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> c, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> d) {</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;<span class="preprocessor">#if 1</span></div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160; 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We may get into trouble if a and b are both even and c and d are both odd: e.g. a = 2, b = 2, c = 1, d = 3.  We would compare 1 + 1 vs 0 + 1, and therefore that 2 + 2 &gt; 1 + 3.  To address this, if both remainders are 1, we add this to the sum.  We know this cannot overflow because ULLONG_MAX is odd, so (ULLONG_MAX/2) + (ULLONG_MAX/2) + 1 does not overflow.</span></div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rem1 = (unsigned)(a%2 + b%2);</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> rem2 = (unsigned)(c%2 + d%2);</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> sum1 = a/2 + b/2 + rem1/2;</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> sum2 = c/2 + d/2 + rem2/2;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    <span class="keywordflow">if</span> (sum1 &gt; sum2) <span class="keywordflow">return</span> YES;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sum1 &lt; sum2) <span class="keywordflow">return</span> NO;</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;        <span class="comment">// sum1 == sum2, so compare the remainders.  But we have already added in the remainder / 2, so compare the remainders mod 2.</span></div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;        <span class="keywordflow">if</span> (rem1%2 &gt; rem2%2) <span class="keywordflow">return</span> YES;</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;        <span class="keywordflow">else</span> <span class="keywordflow">return</span> NO;</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;    }</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    <span class="comment">/* Faster version, but not thoroughly tested yet. */</span></div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> xor1 = a^b;</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160; 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~xor2) &amp; eq);</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;}</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFAbsoluteDifference(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> a, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> b) {</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    <span class="keywordflow">if</span> (a &gt; b) <span class="keywordflow">return</span> a - b;</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> b - a;</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;}</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFRangeExtendsPastRange(<a class="code" href="struct_h_f_range.html">HFRange</a> a, <a class="code" href="struct_h_f_range.html">HFRange</a> b) {</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;    <span class="keywordflow">return</span> HFSumIsLargerThanSum(a.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, a.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>, b.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, b.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>);</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;}</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <a class="code" href="struct_h_f_range.html">HFRange</a> HFIntersectionRange(<a class="code" href="struct_h_f_range.html">HFRange</a> range1, <a class="code" href="struct_h_f_range.html">HFRange</a> range2) {</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> minend = HFRangeExtendsPastRange(range2, range1) ? range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> + range1.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a> : range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> + range2.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>;</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;    <span class="keywordflow">if</span> (range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &lt;= range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &amp;&amp; range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> - range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &lt; range2.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>) {</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;        <span class="keywordflow">return</span> HFRangeMake(range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, minend - range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>);</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    }</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">if</span> (range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &lt;= range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &amp;&amp; range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> - range1.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a> &lt; range1.<a class="code" href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">length</a>) {</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;        <span class="keywordflow">return</span> HFRangeMake(range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>, minend - range2.<a class="code" href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">location</a>);</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    }</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;    <span class="keywordflow">return</span> HFRangeMake(0, 0);</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;}</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFCeil(CGFloat a) {</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(a) == <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>)) <span class="keywordflow">return</span> (CGFloat)ceilf((<span class="keywordtype">float</span>)a);</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (CGFloat)ceil((<span class="keywordtype">double</span>)a);</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;}</div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFFloor(CGFloat a) {</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(a) == <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>)) <span class="keywordflow">return</span> (CGFloat)floorf((<span class="keywordtype">float</span>)a);</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (CGFloat)floor((<span class="keywordtype">double</span>)a);</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;}</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFRound(CGFloat a) {</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(a) == <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>)) <span class="keywordflow">return</span> (CGFloat)roundf((<span class="keywordtype">float</span>)a);</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (CGFloat)round((<span class="keywordtype">double</span>)a);</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;}</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFMin(CGFloat a, CGFloat b) {</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(a) == <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>)) <span class="keywordflow">return</span> (CGFloat)fminf((<span class="keywordtype">float</span>)a, (<span class="keywordtype">float</span>)b);</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (CGFloat)fmin((<span class="keywordtype">double</span>)a, (<span class="keywordtype">double</span>)b);    </div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;}</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFMax(CGFloat a, CGFloat b) {</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;    <span class="keywordflow">if</span> (<span class="keyword">sizeof</span>(a) == <span class="keyword">sizeof</span>(<span class="keywordtype">float</span>)) <span class="keywordflow">return</span> (CGFloat)fmaxf((<span class="keywordtype">float</span>)a, (<span class="keywordtype">float</span>)b);</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;    <span class="keywordflow">else</span> <span class="keywordflow">return</span> (CGFloat)fmax((<span class="keywordtype">double</span>)a, (<span class="keywordtype">double</span>)b);    </div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;}</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> BOOL HFFPRangeEqualsRange(<a class="code" href="struct_h_f_f_p_range.html">HFFPRange</a> a, <a class="code" href="struct_h_f_f_p_range.html">HFFPRange</a> b) {</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;    <span class="keywordflow">return</span> a.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a> == b.<a class="code" href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">location</a> &amp;&amp; a.<a class="code" href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">length</a> == b.<a class="code" href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">length</a>;</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;}</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat HFCopysign(CGFloat a, CGFloat b) {</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;<span class="preprocessor">#if CGFLOAT_IS_DOUBLE</span></div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;    <span class="keywordflow">return</span> copysign(a, b);</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;<span class="preprocessor">#else</span></div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;    <span class="keywordflow">return</span> copysignf(a, b);</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;}</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFAtomicIncrement(<span class="keyword">volatile</span> NSUInteger *ptr, BOOL barrier) {</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="keywordflow">return</span> _Generic(ptr,</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> *:           (barrier ? OSAtomicIncrement32Barrier : OSAtomicIncrement32)((<span class="keyword">volatile</span> int32_t *)ptr),</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;#<span class="keywordflow">if</span> ULONG_MAX == UINT32_MAX</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *:      (barrier ? OSAtomicIncrement32Barrier : OSAtomicIncrement32)((<span class="keyword">volatile</span> int32_t *)ptr),</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;#<span class="keywordflow">else</span></div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *:      (barrier ? OSAtomicIncrement64Barrier : OSAtomicIncrement64)((<span class="keyword">volatile</span> int64_t *)ptr),</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;#endif</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> *: (barrier ? OSAtomicIncrement64Barrier : OSAtomicIncrement64)((<span class="keyword">volatile</span> int64_t *)ptr));</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;}</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger HFAtomicDecrement(<span class="keyword">volatile</span> NSUInteger *ptr, BOOL barrier) {</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;    <span class="keywordflow">return</span> _Generic(ptr,</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> *:           (barrier ? OSAtomicDecrement32Barrier : OSAtomicDecrement32)((<span class="keyword">volatile</span> int32_t *)ptr),</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;#<span class="keywordflow">if</span> ULONG_MAX == UINT32_MAX</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *:      (barrier ? OSAtomicDecrement32Barrier : OSAtomicDecrement32)((<span class="keyword">volatile</span> int32_t *)ptr),</div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;#<span class="keywordflow">else</span></div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> *:      (barrier ? OSAtomicDecrement64Barrier : OSAtomicDecrement64)((<span class="keyword">volatile</span> int64_t *)ptr),</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;#endif</div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;        <span class="keyword">volatile</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> *: (barrier ? OSAtomicDecrement64Barrier : OSAtomicDecrement64)((<span class="keyword">volatile</span> int64_t *)ptr));</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;}</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;</div><div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> HFFPToUL(<span class="keywordtype">long</span> <span class="keywordtype">double</span> val) {</div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;    assert(val &gt;= 0);</div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;    assert(val &lt;= ULLONG_MAX);</div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> result = (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> long)val;</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160; 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   <span class="comment">/* __builtin_clzll doesn&#39;t like being passed 0 */</span></div><div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;    <span class="keywordflow">if</span> (val == 0) <span class="keywordflow">return</span> 1;</div><div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;    </div><div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;    <span class="comment">/* Compute the log base 2 */</span></div><div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;    NSUInteger leadingZeros = (NSUInteger)__builtin_clzll(val);</div><div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;    NSUInteger logBase2 = (CHAR_BIT * <span class="keyword">sizeof</span> val) - leadingZeros - 1;</div><div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;    <span class="keywordflow">return</span> 1 + logBase2/4;</div><div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;}</div><div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;BOOL <a class="code" href="_h_f_functions_8h.html#a925eaf1edd5e195cc196cc300c13276c">HFStringEncodingIsSupersetOfASCII</a>(NSStringEncoding encoding);</div><div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;</div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;uint8_t <a class="code" href="_h_f_functions_8h.html#af701c91f3cf2fe151c68e239a40a79a5">HFStringEncodingCharacterLength</a>(NSStringEncoding encoding);</div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;</div><div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> NSUInteger ll2l(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> val) { assert(val &lt;= ULONG_MAX); <span class="keywordflow">return</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)val; }</div><div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;</div><div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> uintptr_t ll2p(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> val) { assert(val &lt;= UINTPTR_MAX); <span class="keywordflow">return</span> (uintptr_t)val; }</div><div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;</div><div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> CGFloat ld2f(<span class="keywordtype">long</span> <span class="keywordtype">double</span> val) {</div><div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="preprocessor">#if ! 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{</div><div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;    <span class="keyword">@public</span></div><div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;    <a class="code" href="struct_h_f_range.html">HFRange</a> range;</div><div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;}</div><div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;</div><div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160;- (<a class="code" href="interface_h_f_range_wrapper.html#a2c0169bf7e032062da362aa382a29c77">HFRange</a>)<a class="code" href="struct_h_f_range.html">HFRange</a>;</div><div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;</div><div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;+ (<a class="code" href="interface_h_f_range_wrapper.html">HFRangeWrapper</a> *)withRange:(<a class="code" href="struct_h_f_range.html">HFRange</a>)range;</div><div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;</div><div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;+ (NSArray *)withRanges:(<span class="keyword">const</span> <a class="code" href="struct_h_f_range.html">HFRange</a> *)ranges count:(NSUInteger)count;</div><div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;</div><div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;+ (void)getRanges:(<a class="code" href="struct_h_f_range.html">HFRange</a> *)ranges fromArray:(NSArray *)array;</div><div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;</div><div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;+ (NSArray *)organizeAndMergeRanges:(NSArray *)inputRanges;</div><div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;</div><div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;<span class="keyword">@end</span></div><div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160;</div><div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="keyword">@interface </span><a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> : NSObject &lt;NSCopying, NSSecureCoding, NSFastEnumeration&gt; {</div><div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;    <span class="keyword">@private</span></div><div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;    CFMutableArrayRef array;</div><div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;}</div><div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;</div><div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160;+ (<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)withRange:(<a class="code" href="struct_h_f_range.html">HFRange</a>)range;</div><div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;</div><div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;+ (<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)withRanges:(<span class="keyword">const</span> <a class="code" href="struct_h_f_range.html">HFRange</a> *)ranges count:(NSUInteger)count;</div><div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;</div><div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;+ (<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)withRangeWrappers:(NSArray *)ranges;</div><div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;</div><div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;+ (<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)withRangeSet:(<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)rangeSet;</div><div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;</div><div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;+ (<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)complementOfRangeSet:(<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)rangeSet inRange:(<a class="code" href="interface_h_f_range_wrapper.html#a2c0169bf7e032062da362aa382a29c77">HFRange</a>)range;</div><div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;</div><div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;- (void)addRange:(<a class="code" href="struct_h_f_range.html">HFRange</a>)range; 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 </div><div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;- (BOOL)overlapsAnyRangeSet:(<a class="code" href="interface_h_f_range_set.html">HFRangeSet</a> *)rangeSet;  </div><div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;- (<a class="code" href="interface_h_f_range_wrapper.html#a2c0169bf7e032062da362aa382a29c77">HFRange</a>)spanningRange;  </div><div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;- (void)assertIntegrity;</div><div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;</div><div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;<span class="keyword">@end</span></div><div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;</div><div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;<span class="preprocessor">#ifndef NDEBUG</span></div><div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;<span class="keywordtype">void</span> <a class="code" href="_h_f_functions_8h.html#a3bc1e8785697a055602a93858f081758">HFStartTiming</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *name);</div><div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160;<span class="keywordtype">void</span> <a class="code" href="_h_f_functions_8h.html#a92ef6ce654b87c024d9818c3eb32b310">HFStopTiming</a>(<span class="keywordtype">void</span>);</div><div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="_h_f_functions_8h_html_af701c91f3cf2fe151c68e239a40a79a5"><div class="ttname"><a href="_h_f_functions_8h.html#af701c91f3cf2fe151c68e239a40a79a5">HFStringEncodingCharacterLength</a></div><div class="ttdeci">uint8_t HFStringEncodingCharacterLength(NSStringEncoding encoding)</div></div>
<div class="ttc" id="_h_f_functions_8h_html_a925eaf1edd5e195cc196cc300c13276c"><div class="ttname"><a href="_h_f_functions_8h.html#a925eaf1edd5e195cc196cc300c13276c">HFStringEncodingIsSupersetOfASCII</a></div><div class="ttdeci">BOOL HFStringEncodingIsSupersetOfASCII(NSStringEncoding encoding)</div></div>
<div class="ttc" id="struct_h_f_range_html_a1dfb683d8744159ea0bec126c63e7834"><div class="ttname"><a href="struct_h_f_range.html#a1dfb683d8744159ea0bec126c63e7834">HFRange::length</a></div><div class="ttdeci">unsigned long long length</div><div class="ttdef"><b>Definition:</b> HFTypes.h:4</div></div>
<div class="ttc" id="_h_f_functions_8h_html_a92ef6ce654b87c024d9818c3eb32b310"><div class="ttname"><a href="_h_f_functions_8h.html#a92ef6ce654b87c024d9818c3eb32b310">HFStopTiming</a></div><div class="ttdeci">void HFStopTiming(void)</div></div>
<div class="ttc" id="struct_h_f_range_html"><div class="ttname"><a href="struct_h_f_range.html">HFRange</a></div><div class="ttdoc">HFRange is the 64 bit analog of NSRange, containing a 64 bit location and length. ...</div><div class="ttdef"><b>Definition:</b> HFTypes.h:2</div></div>
<div class="ttc" id="interface_h_f_range_wrapper_html"><div class="ttname"><a href="interface_h_f_range_wrapper.html">HFRangeWrapper</a></div><div class="ttdoc">An object wrapper for the HFRange type. </div><div class="ttdef"><b>Definition:</b> HFFunctions.h:455</div></div>
<div class="ttc" id="_h_f_functions_8h_html_a3bc1e8785697a055602a93858f081758"><div class="ttname"><a href="_h_f_functions_8h.html#a3bc1e8785697a055602a93858f081758">HFStartTiming</a></div><div class="ttdeci">void HFStartTiming(const char *name)</div></div>
<div class="ttc" id="_h_f_functions_8h_html_aab18db79475cdbd6490f33a970a64d71"><div class="ttname"><a href="_h_f_functions_8h.html#aab18db79475cdbd6490f33a970a64d71">HFRegisterViewForWindowAppearanceChanges</a></div><div class="ttdeci">void HFRegisterViewForWindowAppearanceChanges(NSView *view, SEL notificationSEL, BOOL appToo)</div></div>
<div class="ttc" id="interface_h_f_range_set_html"><div class="ttname"><a href="interface_h_f_range_set.html">HFRangeSet</a></div><div class="ttdoc">A set of HFRanges. HFRangeSet takes the interpetation that all zero-length ranges are identical...</div><div class="ttdef"><b>Definition:</b> HFFunctions.h:482</div></div>
<div class="ttc" id="_h_f_functions_8h_html_a559dddb38ff414cfacf5021529f3c18c"><div class="ttname"><a href="_h_f_functions_8h.html#a559dddb38ff414cfacf5021529f3c18c">HFDescribeByteCount</a></div><div class="ttdeci">NSString * HFDescribeByteCount(unsigned long long count)</div></div>
<div class="ttc" id="interface_h_f_range_wrapper_html_a2c0169bf7e032062da362aa382a29c77"><div class="ttname"><a href="interface_h_f_range_wrapper.html#a2c0169bf7e032062da362aa382a29c77">-[HFRangeWrapper HFRange]</a></div><div class="ttdeci">HFRange HFRange()</div></div>
<div class="ttc" id="struct_h_f_f_p_range_html_a360b1d98fefa0e171e8e29604466fd78"><div class="ttname"><a href="struct_h_f_f_p_range.html#a360b1d98fefa0e171e8e29604466fd78">HFFPRange::location</a></div><div class="ttdeci">long double location</div><div class="ttdef"><b>Definition:</b> HFTypes.h:11</div></div>
<div class="ttc" id="struct_h_f_f_p_range_html_a9a6d0fb5a10dc4c7a1ebf23edbd319ca"><div class="ttname"><a href="struct_h_f_f_p_range.html#a9a6d0fb5a10dc4c7a1ebf23edbd319ca">HFFPRange::length</a></div><div class="ttdeci">long double length</div><div class="ttdef"><b>Definition:</b> HFTypes.h:12</div></div>
<div class="ttc" id="struct_h_f_range_html_a25e5310bf57bd4d2017a9053f56a80a9"><div class="ttname"><a href="struct_h_f_range.html#a25e5310bf57bd4d2017a9053f56a80a9">HFRange::location</a></div><div class="ttdeci">unsigned long long location</div><div class="ttdef"><b>Definition:</b> HFTypes.h:3</div></div>
<div class="ttc" id="struct_h_f_f_p_range_html"><div class="ttname"><a href="struct_h_f_f_p_range.html">HFFPRange</a></div><div class="ttdoc">HFFPRange is a struct used for representing floating point ranges, similar to NSRange. It contains two long doubles. </div><div class="ttdef"><b>Definition:</b> HFTypes.h:10</div></div>
<div class="ttc" id="_h_f_functions_8h_html_aa1e2340e72af073b5120505b4b0a291b"><div class="ttname"><a href="_h_f_functions_8h.html#aa1e2340e72af073b5120505b4b0a291b">HFDrawShadow</a></div><div class="ttdeci">void HFDrawShadow(CGContextRef context, NSRect rect, CGFloat size, NSRectEdge rectEdge, BOOL active, NSRect clip)</div></div>
<div class="ttc" id="_h_f_functions_8h_html_ac1a3bb72a6760c6488bd9223be25d789"><div class="ttname"><a href="_h_f_functions_8h.html#ac1a3bb72a6760c6488bd9223be25d789">HFUnregisterViewForWindowAppearanceChanges</a></div><div class="ttdeci">void HFUnregisterViewForWindowAppearanceChanges(NSView *view, BOOL appToo)</div></div>
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